SkfA
- Description: spore killing factor
Gene name | skfA |
Synonyms | ybcO |
Essential | no |
Product | spore killing factor |
Function | killing of sister cells |
MW, pI | 5 kDa, 10.648 |
Gene length, protein length | 165 bp, 55 aa |
Immediate neighbours | ybcM, skfB |
Get the DNA and protein sequences (Barbe et al., 2009) | |
Genetic context This image was kindly provided by SubtiList
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Contents
The gene
Basic information
- Locus tag: BSU01910
Phenotypes of a mutant
Database entries
- DBTBS entry: [1]
- SubtiList entry: [2]
Additional information
The protein
Basic information/ Evolution
- Catalyzed reaction/ biological activity:
- Protein family:
- Paralogous protein(s):
Extended information on the protein
- Kinetic information:
- Domains:
- Modification: the mature SKF is cyclic 26-amino acid peptide that is posttranslationally modified with one disulfide and one cysteine thioether bridged to the alpha-position of a methionine PubMed
- Cofactor(s):
- Effectors of protein activity:
- Interactions:
- Localization: secreted (according to Swiss-Prot)
Database entries
- Structure:
- UniProt: O31422
- KEGG entry: [3]
- E.C. number:
Additional information
Expression and regulation
- Regulation:
- Regulatory mechanism:
- Additional information:
- Northern blotting during during phosphate limitation showed an intense 0.25 kb skfA-specific transcript, and a weaker 6.5 kb skfA-skfB-skfC-skfD-skfE-skfF-skfG-skfH transcript.
- The skfA transcript is stabilized by a stem-loop structure in the skfA-skfB intergenic region. PubMed
- The mRNA is very stable (half-life > 15 min) PubMed
Biological materials
- Mutant:
- Expression vector:
- lacZ fusion:
- GFP fusion:
- two-hybrid system:
- Antibody:
Labs working on this gene/protein
Your additional remarks
References
Reviews
José Eduardo González-Pastor
Cannibalism: a social behavior in sporulating Bacillus subtilis.
FEMS Microbiol Rev: 2011, 35(3);415-24
[PubMed:20955377]
[WorldCat.org]
[DOI]
(I p)
Original Publications
Mark A Strauch, Benjamin G Bobay, John Cavanagh, Fude Yao, Angelo Wilson, Yoann Le Breton
Abh and AbrB control of Bacillus subtilis antimicrobial gene expression.
J Bacteriol: 2007, 189(21);7720-32
[PubMed:17720793]
[WorldCat.org]
[DOI]
(P p)
Helga Westers, Peter G Braun, Lidia Westers, Haike Antelmann, Michael Hecker, Jan D H Jongbloed, Hirofumi Yoshikawa, Teruo Tanaka, Jan Maarten van Dijl, Wim J Quax
Genes involved in SkfA killing factor production protect a Bacillus subtilis lipase against proteolysis.
Appl Environ Microbiol: 2005, 71(4);1899-908
[PubMed:15812018]
[WorldCat.org]
[DOI]
(P p)
Masaya Fujita, José Eduardo González-Pastor, Richard Losick
High- and low-threshold genes in the Spo0A regulon of Bacillus subtilis.
J Bacteriol: 2005, 187(4);1357-68
[PubMed:15687200]
[WorldCat.org]
[DOI]
(P p)
Virginie Molle, Masaya Fujita, Shane T Jensen, Patrick Eichenberger, José E González-Pastor, Jun S Liu, Richard Losick
The Spo0A regulon of Bacillus subtilis.
Mol Microbiol: 2003, 50(5);1683-701
[PubMed:14651647]
[WorldCat.org]
[DOI]
(P p)
G Hambraeus, C von Wachenfeldt, L Hederstedt
Genome-wide survey of mRNA half-lives in Bacillus subtilis identifies extremely stable mRNAs.
Mol Genet Genomics: 2003, 269(5);706-14
[PubMed:12884008]
[WorldCat.org]
[DOI]
(P p)